Changeable exhibitor.



H. 0. HAMILTON CHANGEABLE EXH!B|TOR. APPLICATION FILED MAR. 15', 1915.

' Patented Apr. 11, 1916.

3 SHEETS-SHEET 1 Inc/ 71,607"; .Fz 7 a J L zvuziam' 35 AUN, D. c.

H. O. HAMILTON.

CHANGEABLE EXHIBITOR.

APPLlCATION FILED MAR. 15. 1915.

Pafiented Apr. 11, 1916.

a SHEETS-SHEET 2.

JL enr H. 0. HAMILTON. CHANGEABLE EXHIBITOR.

APPLICATION FILED MAR. 15. I915.

1,179,096. Patented 2&1) 11, 1 16. g 2

' N q I fl| N Illllllil N jfe a UNITED sTATns PATENT OFFICE.

HENRY o. HAMILTON, or" oHIcAeo, ILLINOIS ,sssiononfito, m; MFG; (30., bis omoaeo, ILLINOIS, A CORPORATION DIE-ILLINOIS.

or rAnGEaBLE EXHIBiTOR.

s e'afiaa m Letters P atent. P fflt fi r; 1

Applidatibh'fiieuiltarc'h 15, 1915. Sean 1%.1436'1.

To all whom/ it may concern. p i

Be it known that LHENRY O. HAMILTON, a citizen of the United States of America,

' and a resident of Chicago, inthe county of Cook, State of Il1inois,hav'e inventedc'ertain new and useful Improvements in, Changeat the rear of the last mentioned sub-pack is moved to the rear of the first mentioned sub-pack. Incidentally to such shifting" of the cards from one sub pack to the other, the said sub-packs have lateral movement bodily, in the case of one sub-packin. a for- Ward direction and in the case off'the other sub-pack a. rearward direction. And the present improvement hasffo'r its object to provide a simple'and efficient structural formation and combination of parts whereby the. above. described functions and operations are'automatically ttained in a'seria'l manner, all 'aswill hereinafter more fully appear.

In the accompanying drawingsz Figure 1, is a front elevation, partly sectionized,

illustrating the general arrangement of parts, in the present invention. Fig. 2, is a detail; perspective view of the operating,

mechanism by Whi'chthe display cards are seriallyshift'ed from one sub-packto the other. Fig. 3,is* an enlarged.detail horizbntalfs'ec tionon line zv'm, Fig. 1, illustrating the shiftingmechanism at'the'front of the machine. Fig. 4, is a detail perspective vievv of one of the frameddis'playcardsand the associated abutment member fora subpack of said cards.

detail secti'on of a marginal portion" of trained display card. is

Similar reference numeral's'indi'cat'e like parts'in the several views. I Referring to the drawing 1' designates the mainframe or'housing' of the exhibitor,

preferably of the skeleton metal form shown.

2 and' 3 designateupper 'and'ieweatmcks or slideirvays secured tofithe frame 1 and eii'tending longitudinally 501% the same? from and to end. Eachof 'saidtraks comprises a pair of' L shaped rails, spaced'apart trans Fig. 5, is an enlarged suitably connected together by transverse connecting websor' bars. I

4 'designatesthe display cards, above re,- ferred to, and having a detail construction hereinafter described. Said cards are posed in the tracks '2j, 3',.,ih,tv .sub-packs as shownfa'ndwith one sub pack containing a less number or cards than; the other sub; pack, preferably one card lessfandso that the shifting of. acard from one sub-pack to the other may be attained .in a ready and accurate manner by the mechanism of the present invention. a a

Each display card ill preferably cornpri'se aniain centralweb or film and a nar-v ginjal frames, formed of channel bars or rails of metal or like material connected together to form a rectangular structure, the top bar orrail of the structure being open to permit an'introdu'ction ofthe main 'c'enflal Web into pO SitiO nli n theframe.

6 designatesfa U shapedspringf'olip fitting over the top edge of theivv'eb 0r aforesaid, and having out turned flanges or lips 7 at the"- free "ends of the clip Which are adaptedto engage beneath the lovver edge of the up er-mu or. bar of the inarginal frarne 4,"to hold said'vveb or fihn in place; With the described con's'truction'the clip 6Q is pushed downward along with the Web or film aforesaid,'the natural resiliencyof the parts of the aforesaid upper rail or bar permitting said rail parts to spreadapart and admit apas'sage-of the aforesaid outturn'edfi'anges 7.

:8 designates "longitudinal shoes, prefer ably associated With"the up'p'erand lower bars pram; mar ina frame-5, aforesaid; and each having an angular formation 9 at oneend, as shown in Figs. 3'and 43, ,for the purpose hereinafter set forth in the opera tion ofthe mechanism. p a a Y 10 designates counterpart transverse stop bar's secured to the respective, ends Of tlie main frame 1 and arranged in A the path of the series of display cards and adapted 'ito position the samein the described subap acks. Intheprerrredeonstruction s IioWn'in Figs. 11' and 4, thefs top barsare deta chably s'e cured to the mam frame 1 by open fendedre ce'sses and coaictir'ig studs in cennection ""With' hinged bra'ce'sllfby vvhich 's'aid's'tdp ibaifs' are i nerlnally supported in "proper position.

12 and 13 designate a pair of counterpart longitudinally reciprocating cross-heads disposed respectively to the front and rear of the exhibitor and preferably guided in their movement by suitable slides preferably consisting of pairs of upper and lower guide rods 14 secured in spaced relation to the main frame 1, as shown.

15 and 16 designate front and rear pullhooks individually pivoted to the respective cross-heads 12, 13, aforesaid, with their bent or hook shape ends 17 adapted for operative engagement with the rear end of the next adjacent display card 4 to efiect a shifting movement of the same in the operation of the exhibitor.

18 and 19 designate springs associated with the respective pull-hooks, 15, 16, and adapted to yieldingly force the hook-shape ends 17 thereof toward their engaging position with the display cards. In the preferred construction shown in Figs. 2 and 3, the springs, 18, 19 are fixed on the pullhooks 15, 16, with their free and resilient ends adapted to slide upon the adjacent faces of the lower tracks 3, before described. And with a view to permit independent longitudinal adjustment of the pull-hooks 15, 16, in the proper timing of the mechanism, said pull-hooks are pivotally carried on bracket plates 20, secured in a longitudinally adjustable manner to the cross-heads 12, 13, by elongated slots 21 and attaching screws, as shown in Figs. 2 and 3.

In the present invention the respective cross-heads 12 and 13 are spaced apart longitudinally in addition to the transverse spaced relation heretofore described, with a view to attain the requisite longitudinal shifting movement of the displaycards with a minimum stroke of their operating crossheads 12, 13. Simultaneous movement is imparted to the aforesaid cross-heads 12, 13, by a motor 22, and intermediate connections as follows :23 designates a countershaft having pulley and belt connection 24 with the shaft of the motor 22 and provided with a screw or worm 25 having operative en gagement with a worm-wheel 26, on a secondary countershaft 27, journaled in suitable bearings on the main frame 1. In the preferred construction, said bearings are formed in the end heads of a tank or vessel 28 adapted to contain a quantity of lubricating oil, in which the aforesaid worm-wheel 26 and worm 25 are immersed with a view to eliminate undue friction and wear between said parts.

29 designates crank arms secured to the respective ends of the secondary countershaft 27 aforesaid, and adapted for operative connection with the cross-heads 12, 13, by intermediate connections as follows 30 designates pairs of longitudinally spaced pivoted links pivoted at their lower ends to the main frame 1 and connected together at their upper ends by intermediate connecting links 31.. v

32 designates studs or rollers on the sides of the respective connecting links 31, having operative engagement in vertically elongated slots or openings 33 in the cross-heads 12, 13, and adapted to impart longitudinal reciprocation to said cross heads in synchronism with the oscillation of the links 30, aforesaid. In such operation the studs or rollers 32 have vertical travel in the slots or openings 33, during their longitudinal travel in either direction.

35L designates pitman bars or links operatively connecting the pivoted links 30 with the crank arms 29 of the secondary countershaft 27 above described.

The operation of the mechanism is as followsz-Constant longitudinal reciprocation is imparted to the cross-heads 12, 13, by the motor 22, through the intermediate connections above'described. A the cross-head 12 nears the limit of its movement to the right, in the drawings, its pull hook 15 engages the edge of the adjacent display card 4 of the sub-pack of display cards to the right, and in a succeeding movement of said cross head 12 said display card is carried to the left. In such movement of the crosshead 12 and display card'4 to the left,the leading inclined ends 9 of the shoes 8 of said display card, rides before the inclined ends 9 of the shoes 8 of the display card 1 of the sub-pack of display cards to the left, which is in alinement with the above mentioned display card of the sub-pack to the right, to automatically move said display card of the sub-pack to the left, in a transverse and rearward direction and take the place thereof in said sub-pack to the left. lVith the cross-head 12 at the end of its stroke to the left, the cross-head 13 is also at the end of its stroke to the left with its pull-hook 17 moved into engagement with the edge of the adjacent display card 4 of the sub-pack of display cards to the left, said display card being at the side opposite to that above described in the operation of the cross-head 12. In a succeeding movement of the cross-head 13, said display card is carried to the right, and in such movement the leading inclined ends of the shoes 8 of said display card rides behind the inclined ends of the shoes 8 of the display card 1 of the sub-pack of display cards to the right, which is in alinement with the above mentioned display card of the subpack to the left, to automatically move said display card of the sub-pack to the right in a transverse and forward direction and take the place thereof in sub-pack to right.

In the above described operation, the series of display cards have intermittent movements as follows :first, longitudinally to the left; second, transversely in a rearward direction toward the back of the sub-pack of cards to the left; third, longitudinally to the right and from the rear of the sub-pack, to the left, to the rear of the sub-pack to the left, and fourth, transversely and in a forward direction toward the front of the sub pack of cards to the right.

-Having thus fully described my said invention what I claim as new and desire to.

secure by Letters Patent, is

1. In a changeable exhibitor, the combination of a main frame, a longitudinally disposed track adapted to contain two alined sub-packs of display cards, a pair of crossheads adapted for longitudinal reciprocation and having card engaging means individual to front and rear of the sub packs of cards and adapted to shift a card from the front of one sub-pack to the front of the other sub-pack and from the rear of one sub-pack to the rear of the other sub-pack, and means for imparting reciprocation to said cross-heads, the same comprising a secondary countershaft, crank arms on said countershaft, pairs of pivoted links connected together at one end by connecting links, operative means between said connecting links and the cross-heads aforesaid, and pitman connections between the pivoted links and the crank arms aforesaid, substantially as set forth.

2. In a changeable exhibitor, the combination of a main frame, a longitudinally disposed track adapted to contain two alined sub-packs of display cards, a pair of crossheads adaptedfor longitudinal reciprocation and having card engaging means individual to front and rear of the sub-packs of cards and adapted to shift a card from the front of one sub-pack to the front of the other subpack and from the rear of one sub-pack to the rear of the other sub-pack, said crossheads having individual vertically elongated slots, 9. pair of connecting links having studs in operative engagement with said elongated slots, pairs of pivotal links carrying said connecting links, and means for imparting simultaneous movement to said pivoted links, substantially as set forth.

3. In a changeable exhibitor, the combination of a main frame, a longitudinally disposed track adapted to contain two alined sub-packs of display cards, a pair of crossheads adapted forlongitudinal reciprocation and having card engaging means individual to front and rear of the sub-packs of cards and adapted to shift a card from the front of one sub-pack to the front of the other subpack and from the rear of one sub-pack t0. the rear of the Other sub-pack, said crossheads having individual vertically elongated slots, a pair of connecting links having studs in operative engagement with said elongated slots, pairs of pivoted links carrying said connecting links, pitman links connected to the pair of pivoted links aforesaid, and a co-untershaft having crank arms operatively connected to said pitman links, substantially as setforth.

Signed at Chicago, Illinois, this 6th day of March, 1915.

. HENRY O. HAMILTON. Witnesses:

ROBERT BURNS, IVA L. CRANE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or I'atents,

Washington, D. 0. 

